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Colonic NeoplasmsPhase 2ImPACCTNCT02685046

Imatinib as Pre-operative Anti-Colon Cancer Targeted Therapy

A Phase 2 study testing Imatinib in people with Colonic Neoplasms, run by UMC Utrecht at 3 sites in Netherlands.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

In this proof-of-concept trial the investigators will study the effects of imatinib treatment on the biology of mesenchymal-type colon cancers. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colonic Neoplasms
What is being tested?
Imatinib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
5 participants
Where
3 sitesNetherlands
Study dates
Apr 2016to 1 Sep 2019
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female aged ≥18 years
  • Histologically proven adenocarcinoma of the colon;
  • Completed cancer staging with CT-abdomen and CT-thorax/X-thorax according to hospital's standard of care;
  • Confirmed eligibility for surgery with curative intent as deemed by the hospital's multidisciplinary board (MDB) review;
  • An intratumoural gene expression profile of PDGFR-α, PDGFR-β, PDGF-C and KIT, indicative of the mesenchymal phenotype, according to our diagnostic RT-qPCR test (i.e. more than 50% chance of having the mesenchymal phenotype);
  • Minimum of four properly stored pre-treatment biopsies for gene expression analysis/ELISA;
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  • WHO performance status 0 or 1;
  • Adequate haematology status and organ function, defined as:
  • Normal creatinine clearance (≥60 ml/min (MRDR))
  • ALAT within 2.5x upper limit of normal (ULN)
  • PT-INR < 1.5
  • Leukocytes > 1,5*10^9/L; Hb > 6.0 mmol/L; platelets > 100*10^9/L
  • Willingness and ability to comply with scheduled visits, treatment plans and laboratory tests;
  • Written informed consent.

Who cannot join

  • The presence of synchronous distant metastases;
  • Current hospital standard of care dictates that subject should undergo any neoadjuvant therapy;
  • Concurrent participation in another clinical trial using any medicinal product, or participation in such a trial in the period of three months prior to the current trial;
  • Women who are pregnant, plan to become pregnant or are lactating during the study or for up to 30 days after the last dose of imatinib;
  • Known HIV or Hepatitis B/C infection;
  • Known symptomatic congestive heart failure;
  • Co-morbidity requiring concomitant treatment with drugs that act as strong inducers of CYP3A4 or with drugs with a narrow therapeutic range influenced by imatinib

Trial locations and contacts

3 sites in 1 country.

Netherlands3 sites
  • Meander Medical Center

    Amersfoort, Utrecht, 3813TZ

  • Diakonessenhuis

    Utrecht, 3582KE

  • University Medical Center Utrecht

    Utrecht, 3584CX

Other trials in Netherlands

About this study

Official title: Targeted Therapy With Imatinib for Treatment of Poor Prognosis Mesenchymal-type Resectable Colon Cancer: a Proof-of-concept Study in the Preoperative Window Period.

In this proof-of-concept trial the investigators will study the effects of imatinib treatment on the biology of mesenchymal-type colon cancers.

Read the detailed description

Tumor biopsies from patients with newly diagnosed colon cancer will be pre-screened with an RT-qPCR test to identify tumors of the mesenchymal subtype. Patients with mesenchymal-type tumors that meet the in- and exclusion criteria will be treated with imatinib during the "window period" that normally precedes surgery. Immediately following tumor resection, biopsies will be taken from the surgical specimen. Gene and protein expression of the pre- and post-treatments biopsies will be compared to assess the effects of imatinib therapy on PDGFR- and cKIT-signalling and on the mesenchymal gene expression profile.

Being tested
Imatinib
Medical subject headings
Colonic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ImatinibDrug

    Also called Gleevec, STI571

    Subjects will be treated with the medicinal product imatinib, which will be administered orally in tablets of 400mg, once per day, during two weeks prior to tumor resection.

Study groups in NCT02685046
Study groupRoleWhat they receive
InterventionExperimentalSubjects will be treated with the medicinal product imatinib, which will be administered orally in tablets of 400mg, once per day, during two weeks prior to tumor resection.
Receives: Drug: Imatinib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Effects of treatment on the mesenchymal gene expression profile

    To assess the extent of change in the mesenchymal phenotype, gene expression arrays will be generated from pre- and post-treatment tissue samples and the expression of genes associated with the poor-prognosis mesenchymal subtype will be compared.

    Measured: period from diagnostic colonoscopy until surgical resection (~5 weeks)

Secondary outcomes (7)
  1. Extent of targeted inhibition of PDGFR and KIT phosphorylation in cancer cells

    1. Measurement of PDGFR and cKIT inhibition by comparison of the fraction of autophosphorylated PDGFR and cKIT pre-treatment versus post-treatment, measured with ELISA on tissue samples derived from diagnostic biopsies and surgery.

    Measured: period from diagnostic colonoscopy until surgical resection (~5 weeks)

  2. Correlation between plasma imatinib trough levels on day 14 and intratumoural concentration of imatinib in the resection specimen

    Measured: at time of surgery

  3. Correlation between the extent of PDGFR and cKIT inhibition and systemic and intratumoural imatinib and CGP74588 concentration

    Measured: at time of surgery

  4. Change in plasma CEA-concentrations

    Measured: period between diagnostic colonoscopy until surgical resection (~5 weeks)

  5. Change in plasma levels of circulating tumor DNA

    Measured: period between diagnostic colonoscopy until surgical resection (~5 weeks)

  6. Effects of imatinib on the ability of cancer cells to form in vitro 3D cell cultures (organoids)

    1. The ability to establish organoids from imatinib-treated tumours will be compared with the general success rate of organoid formation from colon tumours at the Hubrecht Institute.

    Measured: at time of surgery

  7. Number of participants with treatment-related adverse events as assessed by CTCAEv4.02

    The occurrence, frequency and severity of adverse events during preoperative treatment with imatinib, peroperatively or in the postoperative period (up to 14 days after tumour resection).

    Measured: from start of treatment until 2 weeks after last dose imatinib

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Feb 2016 (estimated)
  2. Study startApr 2016
  3. Primary completion1 Sep 2019
  4. Study completion1 Sep 2019

Why it stopped: Low accrual rate

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
5 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02685046
Sponsor's protocol ID
CC-TT-IMA-14
Other IDs
NL50620.041.15, 2014-003965-11, 2014
Acronym
ImPACCT
Status last verified
Oct 2019
First submitted
9 Feb 2016
Last updated
14 Oct 2019
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Publications

  • Ubink I, Bloemendal HJ, Elias SG, Brink MA, Schwartz MP, Holierhoek YCW, Verheijen PM, Boerman AW, Mathijssen RHJ, de Leng WWJ, de Weger RA, van Grevenstein WMU, Koopman M, Lolkema MP, Kranenburg O, Borel Rinkes IHM. Imatinib treatment of poor prognosis mesenchymal-type primary colon cancer: a proof-of-concept study in the preoperative window period (ImPACCT). BMC Cancer. 2017 Apr 19;17(1):282. doi: 10.1186/s12885-017-3264-y.

    PubMed 28424071

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Imatinib in people with Colonic Neoplasms, run by UMC Utrecht at 3 sites in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 14 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 14 Oct 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Low accrual rate). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Effects of treatment on the mesenchymal gene expression profile (time frame: period from diagnostic colonoscopy until surgical resection (~5 weeks)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02685046, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Oct 2019.

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